Which refers to the chemical name of CO? carbon monoxide carbon oxide monocarbon monoxide monoxide carbon
2 answers:
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Answer:
f' =1064.1025 Hz
Explanation:
We know that from doppler's effect
f'= observed frequency
f= actual frequency =1000 Hz
v= velocity of sound waves = 332 m/s
v_o= velocity of observer =0
v_s= velocity of source. ( let velocity of car be 20 m/s)
therefore,
f' =1064.1025 Hz
Answer:
108 km
Explanation:
The conversion factor between meters and feet is
1 m = 3.28 ft
So the second altitude, written in feet, can be rewritten in meters as
or in kilometers,
the first altitude in kilometers is
so the difference between the two altitudes is